On Thu, 16 Mar 2023, Khadija Kamran wrote: > On Wed, Mar 15, 2023 at 09:09:16AM -0700, Alison Schofield wrote: > > On Wed, Mar 15, 2023 at 07:22:39PM +0500, Khadija Kamran wrote: > > > On Wed, Mar 15, 2023 at 02:34:31PM +0100, Fabio M. De Francesco wrote: > > > > Aside from what I said and asked for with the other message of this same > > > > thread, please take note that you can build a specific module if you prefer > > > > not to re-build the whole kernel and other modules at the same time. > > > > > > > > I'm pretty sure that the instructions to do so are in the OutreachyFirstPatch > > > > tutorial. > > > > > > > > If they are not there, please let us know. > > > > > > > > Fabio > > > > > > Hey Fabio! > > > > > > In the Outreachy FirstPatchTutorial under the 'Compiling only part of > > > the kernel' section there are ways to compile only some part of the > > > kernel. > > > > > > I have tried using "make W=1 drivers/staging/axis-fifo/" and it says > > > 'nothing to be done for'. > > > > > > Should I start with the steps to reproduce? :'( > > > > Khadija, > > > > I've applied your patch and it fails to compile with the warnings > > that LKP reports. > > > > If you are doing: $ make drivers/staging/axis-fifo/ > > > > and it is saying 'nothing to be done...' > > > > You either have not changed anything since the last compile, or you > > do not have the module configured. > > > > Hey Alison! > I might've written the statement wrong. Actually, here is the output of > make drivers/staging/axis-fifo > > YACC scripts/genksyms/parse.tab.[ch] > HOSTCC scripts/genksyms/parse.tab.o > HOSTCC scripts/genksyms/lex.lex.o > HOSTLD scripts/genksyms/genksyms > CC scripts/mod/empty.o > MKELF scripts/mod/elfconfig.h > HOSTCC scripts/mod/modpost.o > CC scripts/mod/devicetable-offsets.s > HOSTCC scripts/mod/file2alias.o > HOSTCC scripts/mod/sumversion.o > HOSTLD scripts/mod/modpost > CC kernel/bounds.s > CC arch/x86/kernel/asm-offsets.s > CALL scripts/checksyscalls.sh > DESCEND objtool > INSTALL libsubcmd_headers > DESCEND bpf/resolve_btfids > INSTALL libsubcmd_headers > make[3]: Nothing to be done for 'drivers/staging/axis-fifo/'. Did you try make allyesconfig and make drivers/staging/axis-fifo/axis-fifo.o I get no warnings with W=1, but I do get a .o file. I also tried make drivers/staging/axis-fifo/axis-fifo.i which just expands macros and simplifies ifdefs, and I see the various code from the file. So I don't have the impression that it is getting ifdef'd away in some obscure way. Perhaps I am missing something. Or perhaps the warning in question only comres from LLVM? julia > > > > I suspect it has never compiled for you and you need to look at > > the direction in the tutorial for 'Recompiling the driver' section > > and learn how to use make menuconfig. > > > > This driver has a couple of dependencies described in the Kconfig > > file. You will not even see the 'XIL_AXIS_FIFO' option until you > > turn on 'OF' and HAS_'IOMEM'. > > > > See the drivers/staging/axis-fifo/Kconfig > > > > Please confirm that you have compiled the driver before chasing > > after the build env that lkp reports. > > > > Thanks, > > Alison > > Sorry, I made a mistake here. > > I did not change the driver 'Xilinx AXI-Stream FIFO IP core driver' to > being compiled as a module by typing 'm'. > Is that the problem here? > > Also, now when I try to change it by pressing 'm', it is not working. > And I have tried many times but I cannot change the driver from '*' to > 'm'. > > Kindly help me with this. > > Regards, > Khadija > > > >
